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Finding the Fourth Proportional to 492,329.80, 738,494.70 and 281,794.60

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Solution

The fourth proportional to 492,329.80, 738,494.70 and 281,794.60 is: 422,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,329.80 : 738,494.70 = 281,794.60 : x
  2. Step 2: Convert to fraction form
    492,329.80/738,494.70 = 281,794.60/x
  3. Step 3: Cross multiply
    492,329.80x = 738,494.70 × 281,794.60
  4. Step 4: Simplify right side
    492,329.80x = 208,103,818,588.62
  5. Step 5: Solve for x
    x = 208,103,818,588.62/492,329.80
  6. Step 6: Final answer
    x = 422,691.90

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.